Splitting Waves and Hairs: Comparing X-bow, Axe Bow, and More

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We currently enjoy an explosion of variety in bow shapes, each suited to a different task. Nearly the same bow shape, used on a different hull, may work for entirely different reasons. This time we distinguish between four prevalent bow shapes: conventional hull, X-Bow, Axe Bow, and wave piercing.
REFERENCES
[1] Wikipedia Authors, "Large Waves Create Sea Spray over the Bow of the Amphibious Assault Ship USS Peleliu," Wikimedia Commons, 23 Oct. 2009. [Online]. Available: commons.wikimedia.org/wiki/Fi.... [Accessed 18 May 2018].
[2] RU-vid Contributors, "Warship Takes Huge Wave Over Bow," RU-vid, 8 Jun. 2016. [Online]. Available: • Warship Takes Huge Wav... . [Accessed 18 May 2018].
[3] Wikipedia Authors, "Container Ship Stefan Sibum VorStapellauf," Wikimedia Commons, 17 Oct. 2008. [Online]. Available: commons.wikimedia.org/wiki/Fi.... [Accessed 19 May 2018].
[4] Ulstein, "X-bow," Ulstein, 2005. [Online]. Available: ulstein.com/innovations/x-bow. [Accessed 19 May 2018].
[5] U. Kvamsvag, "The Foreship Arrangement for a Vessel of the Displacement Type," PCT, vol. No. 000073, 2006.
[6] D. E. Nordas, "Optimization of Bow Shape of Large, Slow Ships," in Master Thesis in Marine Technology, Trondheim, Norway, NTNU- Trondheim: Norwegian University of Science and Technology, June 2012.
[7] M. A. Mosaad, M. M. Gafaary, W. Yehia and H. M. Hassan, "On the Design of X-bow for Ship Energy Efficiency," in Influence of EEDI on Ship Design & Operation, London, U.K., 22 September 2017.
[8] Ulstein, "CFD Simulations - Comparison of Different Bow Designs," RU-vid, 20 Sep. 2016. [Online]. Available: • CFD Simulations - comp... . [Accessed 19 May 2018].
[9] Damen Shipyards, "Sea Axe design," Damen Shipyards, [Online]. Available: www.damen.com/en/innovation/s.... [Accessed 19 May 2018].
[10] J. Gelling, "The Axe Bow: The Shape of Ships to Come," in 19th International HISWA Symposium on Yacht Design and Yacht Construction, Amsterdam, The Netherlands, 13 and 14 November 2006.
[11] M. Waters, "A Look At Wave Piercing Bows on Multihulls," Sail Magazine, 21 May 2015. [Online]. Available: www.sailmagazine.com/multihul.... [Accessed 19 May 2018].
[12] RU-vid Contributors, "Animation - EARTHRACE 2 in 100 foot waves," RU-vid, 10 August 2016. [Online]. Available: • Animation - EARTHRACE-... . [Accessed 19 May 2018].
[13] Tekay Corporation, "ALT Striker: Bollard Pull Testing," RU-vid, 14 Dec. 2016. [Online]. Available: • ALP Striker | Bollard ... . [Accessed 20 May 2018].
[14] RU-vid Contributors, "Seven Sisters - Fast Stable 40' Hybrid Wavepiercer Yacht," RU-vid, 28 Sep. 2013. [Online]. Available: • Seven Sisters - Fast S... . [Accessed 20 May 2018].
[15] Flow Science, Inc., "Hydro-dynamic Response of a Planing Hull," RU-vid, 4 Nov 2013. [Online]. Available: • Hydro-dynamic Response... . [Accessed 25 May 2018].
View more tips and helpful articles at www.dmsonline.us/

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3 июл 2024

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Комментарии : 340

@TheTiacat 3 года назад

I can’t believe this held my limited attention span for 20 min. Really neat. I actually learned something watching RU-vid.

@swimspud 5 лет назад

I’ve been curious about why we see different bow types for a while. Thanks for the awesome and in-depth discussion

@maddun3700 5 лет назад

Thanks Nick. Another excellent video, I learned a lot. As usual you deliver the right amount of infomation for a layman like myself to understand without being too technical or too simplistic.

@jpstenino 5 лет назад

well said

@JackRyanONeill 5 лет назад

Very interesting video with lots of information - I had been wondering how an X-Bow design would work and handle at sea. Thank you for sharing a designers insight, I loved it!

@andreasrajagoklassitorus4254 5 лет назад

this channel is great. your explanation is technical enough but not too difficult to understand. perfect for a naval architecture student like me. good job nick!

@hrbizatione 5 лет назад

Thank you for the detailed information & the effort in making the video!

@jshrawder49 5 лет назад

That was a great great video thank you for going through this information in a very simple way in English!!! Keep up the great videos!!!

@nauticalwolf6649 2 года назад

I like your energy and how you explain things in a way a layman can grasp. Keep it up!

@mikeperth8027 5 лет назад

Great and very informative video. Thank you for taking the time to make it and for the free lesson on hull shapes.

@kristianblazevic2008 3 года назад

hey just to make clear when you find yourself in a storm no matter what type of ship you have its not easy trust me Think for every thing you want from amazon or ebay someone need to shipp it across the world thik about people stuck on shipps because of Covid

@RockitMan-ey8tx 5 лет назад

I truly enjoy your video lectures. Most interesting.

@semersion 5 лет назад

Super cool video! Thank you very much. Subscribed and cant wait to see more. It got me to thinking about the affects of these bows when you have a following sea.

@JoeC88 5 лет назад

Thanks for the excellent presentation

@martinhealy2902 4 года назад

Thanks for the information and your teaching it! Appreciated!

@DarkShroom 4 года назад

wow amazing channel.... citations omg this is great u really don't waste any of people's time in this presentation, tight and to the point, it feels great when you find a channel you know you're learn something from

@philipteevee8067 5 лет назад

I'm not even really into boats and I find this channel fascinating! I'm already mentally designing a hypothetical tri-hull swath, but with a aft-biased centre of gravity and with a wider structural section rising from the forward part of the submerged swath pods to improve seakeeping, with wave piercing tips to the three hulls, resulting in a W-shaped planform.... lol, I've only the barest idea of what I'm talking about, but what I do know is thanks to the channel, and it's fun to think about!

@erikig 2 года назад

“I’m not even really into boats”…🤣

@gsmith207 3 года назад

Thanks for the education. Learned something new today. Love that!

@RovingPunster 5 лет назад

Great explanation.

@yoghik 3 года назад

What a great man! As a yacht designer I found out a tonn of usefull information here!!! Grand thanks!

@jamesaron1967 2 года назад

Great breakdown and comparison

@darrellbedford9925 5 лет назад

The axe bow reminds me of what was called "Destroyer Bow" as used on military destroyers of old.

@cobrasvt347 4 года назад

Or the Titanic’s bow. lol

@Orvz475 3 года назад

I think the Iowa-Class Fast Battleships also had the Axe Bow as well.

@TheWizardGamez 3 года назад

Whale wars has like 80 of those Damon shipyard axe bow vessels

@StaK_1980 3 года назад

@@Orvz475 NO, the Iowa has a classic bow. One could even say a clipper bow.

@fredread9216 3 года назад

Yes, I served on a wwII era destroyer. Man that was not much fun in really heavy weather. And we saw plenty. We killed 3 men and injured several more and put several over the side while going out an inlet in Taiwan. The force of the waves severely bent the steel ladders going up the sides of the superstructure. The ladders were SIDEWAYS to the water flow. Really bad call to have men on the bow in these conditions. He lost his ticket on that one.

@praneethaisamak521 5 лет назад

I Truly enjoy your video.Thanks Nick🏔🏞⛰🏕🏖🇦🇱🇦🇩

@MegaBoilermaker 5 лет назад

Very well explained Nick.

@mlight6845 4 года назад

Excellent video about mechanics of bow design. I just discovered the wave splitting hull catamaran and wondered how well they do as the size of the wave increases. Lots of green water. Thank you!

@sterlingabbot695 4 года назад

Was about to go boat shopping. Good thing I ran into your video.

@robertpapps3618 5 лет назад

Thanks for your presentation.

@PartisanOgrae 2 года назад

Thanks for sharing this!

@augenmaugen 2 года назад

Kudos, oddly fascinating material and unexplainably engaging style. I’m in a land locked state, may never own a boat, but still fascinated.

@ghostindamachine 5 лет назад

Super interesting!

@petersampson4635 2 года назад

Thanks Nick 👍!!!

@trivium8734 5 лет назад

This is so cool. Thanks man.

@adamnorton748 3 года назад

Thanks for sharing. Good explanations

@RikMaxSpeed 2 года назад

Thank you for providing clear reasoned explanations as opposed to the marketing waffle I’ve seen on other videos.

@awmperry 2 года назад

Fascinating. I've just been trying to explain to someone the difference between a plumb bow, a straight-stem bow, an axe bow and an X-bow - this will be very useful in clarifying it.

@thenavalarch 5 лет назад

Great! Super informative. Thanks

@uwootmviii8695 4 года назад

so, i saw the video of the thunderchild II and damn, thats an interesting entry in this whole bow form theme, i like it.

@davidodonovan1699 2 года назад

Thank you for this information

@raphzshots 5 лет назад

learned a lot here! Great vid!

@NaomiClareNL 5 лет назад

Thanks Nicholas!

@aliuyar8537 5 лет назад

Thanks Nick.

@skyak4493 3 года назад

Nick, this is the best video I have seen on the subject. As they say "a picture is worth a thousand words" this video is worth 10X the thousands of blog posts I have seen bouncing this topic around and never achieving any resolution. I think your insights on attributes are all true, but you stop short of putting numbers and dimensions on these concepts. Wave height capacity and frequency response would make deciding on a bow design clear and simple. I know that as a professional you can't give away all your secrets, but I have seen so many NAs insisting that this is a mystical process I think you could clean up as the guy who makes this a clear and simple optimization. All these bows have a wave height capacity with varying negative consequences from exceeding that capacity. Wave height from the ships perspective is wave height apparent, which is a function of incident frequency which is a function of ship speed, wave incidence, and ship heave natural frequency. You don't even have to be a genius to know what the expensive CFD studies are going to find.

@tyson31415 3 года назад

This was really good!

@davidgallagher171 3 года назад

Outstanding!

@softwaretraining-naval 5 лет назад

Thanks for sharing.

@damieno224 5 лет назад

Hey Nicholas, just discovered your awesome channel. So far i've neglected the outboard swap in my driveway for 4hrs and counting....all because of curiousity and hunger for knowledge on anything nautical, but particularly design theory and concepts that can (or have been) measured in real-world application. 4hrs and counting.... Anyway, regarding bow designs, I'm interested to see your take on some more unconventional builds, in particular: A) the Seaski boats, B) how hydrofoils in general are seemingly being embraced in the sailing world, but dismissed as "tried that, too hard" in power boats. The exception being the 'wake/wave' damping foils more recently fitted to to some large ships with apparent success. cheers

@DatawaveMarineSolutions 5 лет назад

I read Seaski's explanation behind their vessel: www.seaski.com.au/portfolio_page/about/ . It apparently uses a combination of two planing hulls on the sides and compressed air under the hull for lift. I have seen this concept before. I'm not sure how well the air under the hull works. That is an area that I need to personally research further. But the side planing hulls should work just fine. The only downside to the whole hull is that I would not trust that with any large waves of 1.5 - 2 m wave height. The same hull design that compresses air will also create huge pitch motions on a hull. I need to make a whole video on hydrofoils. But for the short explanation: It's important to remember that hydrofoils in the sailing world are only going on high performance racing vessels. The people that use those boats are highly experienced sailors, who want a bigger challenge. And hydrofoils are a challenge. On a normal boat, you only need to worry about your direction of travel (yaw motion control). The ship's hull handles motion control in all your other degrees of freedom (surge, sway, heave, roll, and pitch). But a hydrofoil needs motion control for all six degrees of freedom. Either very attentive crew, or an autopilot more suited to an airplane. That is the main challenge of hydrofoils: you need to worry about controlling all six degrees of freedom.

@paulmcmullan9931 5 лет назад

I would be intrigued to know about the often backward racked bow of a dreadnought class battleship and zumwalt class destroyer.

@JaittPenguin 4 года назад

Fascinating. Thanks

@EdwardTilley 3 года назад

great explanations...

@agontop1 3 года назад

Excellent Vid.. Thank you.

@ivansulovsky3248 5 лет назад

Love your work! suggestion for a topic - parametric rolling

@davidthompson6099 5 лет назад

Plumb bows similar to the axe bow are very common on a lot of modern sailboats. They are often very wet and they pound in heavy seas. Often made because of ease of manufacture, length of waterline, and increased interior volume at the cost of excess windage and comfort at sea. Many older sailing designs would use a deeper profile fore and aft to allow the hull to rise and fall in waves more smoothly, and tend to stay more dry.

@sjohnsneddon 5 лет назад

Great video footage from HMNZS Otago

@flatworm00 3 года назад

Very interesting, had no idea!

@mikewalrus4763 3 года назад

From my small experience at sea - deck hand to master over 37 years, sadly I find that Marine Architects and the ships crew are at different ends of the spectrum - rarely do the two meet (a bit like shore side architects and builders) on the one side the architect designs grandiose shapes on the other side both crews and builders put themselves at risk to either operate or build these designs. despite that I would like to congratulate the presenter for at least looking at both sides of the coin. Very well done sir, we are finally getting somewhere, let us hope others will move that way too (I do of course include ships crews who often complain as a matter of course despite the efforts of the architect)

@OgamiItto70 3 года назад

To be fair, a naval architect who goes to sea exposes him or herself to danger, wet, cold, heat and seasickness. Horrors!

@mikewalrus4763 3 года назад

@@OgamiItto70 Just a minute - the idea of being a so called Naval Architect is to design things that go to sea! This means that the naval architect should have some idea of what he's doing, this can only be got at sea! If you were such a being I certainly wouldn't buy any of your designs nor go anywhere on one of them!

@OgamiItto70 3 года назад

@@mikewalrus4763 Yeah, but heating, air conditioning, supermarkets, bars, restaurants, bookstores, coffee shops, movie theaters, bowling alleys, female women of the opposite sex...all in much greater, more reliable supply ashore than at sea!

@mikewalrus4763 3 года назад

@@OgamiItto70 What has that got to do with designing sea going vessels other than the fact that some or all of it may be required at sea? Or at least facitities for and to use such items

@OgamiItto70 3 года назад

@@mikewalrus4763 Cost/benefit analysis for college boys or girls.

@thevirginclanlee275 4 года назад

Very good presentation. I think the X bow is the future trend, way better than others.

@lewisdoherty7621 5 лет назад

I remember as a kid looking at the old photographs of the dreadnoughts with inverted bows. Now they are back for some new warships.

@d.c.t.munasinghekalupathir98 Год назад

èxcellant video Mr Nick

@D-dd-rp7ve 4 года назад

17:16 Could you put an image of every bow ship with every bow type? Thanks!

@Lienvuongchannel 4 года назад

thanks for share!

@Torvikholm 3 года назад

I remember the launch of the first x-bow vessel, the Bourbon Ocra. I was allowed onboard for a look around. I found it incredibly wired looking. And to be honest, I still do. I don't work at sea myself, but what I hear is that the x-bow is stable with sea straight on, but is uncomfortable with waves hitting from a 45 degree angle.

@geraldhoag5548 3 года назад

I have seen videos on youtube that show an x-bow next to a conventional bow of oilfield service ships in the north sea and notices that the x-bow had less pitching. This seems to me to cause the thrust from the props to remain more horizontal. This will make the thrust more efficient, improving effective thrust, improving fuel economy, or reducing thrust requirement to maintain a given speed.

@ph11p3540 5 лет назад

Good stuff. Now I understand why the Zumwalt class destroyers are having some minor structural issues in front of the super structure and why the advanced gun system is having reliability issues.

@MrOlgrumpy 5 лет назад

The AXE bow dates back more than a century

@NighthawkNZ 4 года назад

HMNZS Otago in rough sea in the southern ocean... ahhh the memories..

@rabbitspliff 5 лет назад

Speak of the devil. I was just searching your channel for any vid on X-Bows yesterday. Consider this another well earned sub.

@zook420000 5 лет назад

excellent vid

@christopherpardell4418 5 лет назад

I think the long bow is simply moving the personnel spaces toward the center of pitch rotation. That is, the tip of the bow experiences the same high accelerations, because it is moving up and down a significant distance... but the crew spaces are at or near the center of that rotation and simply move a shorter distance in the same period.

@zqtech.5421 3 года назад

Nice video

@henningklaveness7082 5 лет назад

Hands down your best video yet. Especially your analysis of the X-bow was very informative. I find the balancing act of contradictory requirements in ship design extremely interesting, and wrestle with the idea of "the ideal hull" for my application, long range cruising. The interplay between transportation economy (speed x cargo mass / fuel usage) versus constructive cost and how the life cycle economy works out in different usage cases is complex enough, but it gets really interesting when you throw sea keeping requirements into the mix. Perhaps a subject for a future video? BTW, I was under the impression that the X-bow was more efficient when running at speed in heavy weather, which I find very thermodynamically intuitive since the sheets of green water represent a lower state of entropy than the foamy spray kicked up by a conventional bow.

@DatawaveMarineSolutions 5 лет назад

It gets even more fun when we add in all the mechanical elements. For example, vibrations are a big concern on the ship for passenger and crew comfort. One of the main sources of vibration comes from interactions between the propeller and hull. So we often decide on separations between propeller and hull based on vibration concerns, rather than propeller efficiency.

@henningklaveness7082 5 лет назад

Don't I know it. My current boat is roughly 13.5m LOA / 25 T displacement, and came with a 36" / 90 cm CPP in a poorly designed Kort nozzle. That configuration was bad enough to break windows under full power, but things improved immeasurably when I cut the nozzle off and re-ground the blade tips. With a 15 cm blade-to-hull clearance, I expect things to get almost nice once I re-locate all the ballast to the wedge keel that carries the shaft.

@budsbustbi6339 4 года назад

slight broaching?? the one i worked on would broach just thinking about a following sea!!

@benthompson2205 3 года назад

I have nothing to do with ships, boats, yachts, hulls or anything, but I still found this interesting.

@coryyoung8289 4 года назад

Amen Father! 🙏

@alpachlavi 3 года назад

Very interesting and perfectly explained! I would love to learn more about the specifics of seakeeping and behavior of recreational boats with a planing hull in the size of 35 to 45 feet. This seems to me the main criteria when buying a boat like this, but there is not much substantial information out there. If you want to go out at 5 bft with your family on a planing boat, what hull specs should you consider? How important is deadrise for a smooth ride with minimized slamming? How big are the differences eg. between a northern hull like those of a Windy or Marex and one like Atlantis or Sea Ray? I would be so thankful for some answers!

@CutterCo 5 лет назад

In the late 1800s and early 1900s vertical bows and deep draft was dominant and to me resemble axe bow. And they made the boats that way because of experience. The fishermen in fishing smacks noticed that vertical bows pierce waves better and result in smoother ride. I guess what goes around comes around.

@nicolasruiz6976 3 года назад

Very interesting video, thanks! Now, I can't avoid thinking of the bows in canadian canoes which I guess are suitable for rivers and lakes (small and short waves). I would love to hear some comments on that.

@dominictarrsailing Год назад

hmm I think that may be largely the result of the traditional construction technique making the boat out of a sheet of tree bark. That's the bow shape that's easy to make.

@d.josephvirnig764 Год назад

Hi Nick, thanks for teaching me today! I am into a project you may find interesting; I am refitting a 100' wooden tug (keel laid in '25 for Wrigley by Muller in San Jose) into a mini cruise ship. She has a plumb prow, beamy midships, deep draft, big wheel and fan tail. My name is Dj, I am on her in the Salsh Sea.

@Andy_M986 2 года назад

There is a video of an X bow going through the waves, alongside a normal bow ship,the video shows the X bow cruising through the waves with ease,while the normal.bow would rise up and slam down.

@harrie205 5 лет назад

nice video as a mechanical Engenieur and sailor i was thinking i had understood the bow types but you showed my that i was wrong and how it is in reality

@MartyInTheWoods 5 лет назад

Prust, brilliant! I think, I peed myself... Thank you Harrie! (but honestly, I don't think he is serious, is he?)

@DatawaveMarineSolutions 5 лет назад

@@MartyInTheWoods With over a decade experience as a professional naval architect, I better be serious. I admit that RU-vid is not a platform where one expects to get taken seriously most of the time. But to set the record straight: not a joke. Actual useful information based on informed science and engineering.

@patternsmashing 6 лет назад

I'm very curious about the M-Hull as seen on the M80 Stiletto and the water taxis for Venice. How effective would that be for commercial cruiser boat, as opposed to a catamaran or trimaran? From a total novice perspective (and that's more credit than my knowledge deserves) it seems like it would provide advantages in weight, seakeeping, available area etc?

@marshallgiuffria366 3 года назад

Good video, there are some things that were shaken up, but I like them.

@znon5876 5 лет назад

Love your channel. Live long and proper 🖖

@Veldtian1 5 лет назад

propeller?

@jurgenahaus4300 5 лет назад

Veldtian1 prosper

@johnswimcat 3 года назад

Very interesting

@espressomessiah 3 года назад

That video embedded in this video is a New Zealand navy ship in the sub antarctic ocean. Big waves, growlers and bergy bits!

@wmayo1492 3 года назад

Wouldn’t the reduced pitch motions and smoother ride both be beneficial when towing. As this is a major use for X-bow ships, if so, that would a benefit.

@teddw5786 3 года назад

Thanks Nick, love the simulator thru waves. Have you come across the 1910 Hickman Sea Sled, and opined on its wave handling claims? Cheers

@olivermcchesney5357 5 лет назад

Fantastic video, I was on the vessel in the greenwater example. HMNZS WELLINGTON, OPV in the Ross Sea

@DatawaveMarineSolutions 5 лет назад

Awesome! Did you see any big waves like shown in the video?

@olivermcchesney5357 4 года назад

@@DatawaveMarineSolutions Absolutely, i was standing next to the guy taking the video, while this was occurring a mayday was received from a single mast yacht which due to the conditions we could not attend to. Unfortunately we never found the yacht or the crew

@justicewarrior9187 5 лет назад

What about the Zumwalt bow??

@navistars 3 года назад

As they all look more or less the same, Will you recommend a different bow for an inflatable bot such is the Zodiac ones?

@geomardomingo1672 3 года назад

I was NOT ready for the class.

@dominictarrsailing Год назад

the backwards angled bow has become very trendy on high performance racing multihull, and also luxury cruising multihull. I'm a little bit wary of it to be honest. For a racer, if you don't win, well you might as well sink, so they care more about going fast than keeping dry, but a crusing cat speed is cool, but not really as important as comfort. Although, if the boat is only sailed in moderate conditions, then comfort is much easier. But if the boat is sailed in extreme conditions (something that may not be the plan, but ends up happening). A sailing multihull is also light, so it doesn't have the inertia that you recommended. So, is a wave splitting hull more likely to pitchpole? it's definitely more likely to dive into the wave, but would have less resistance to come out, but would that be enough to make it safe? or would a flared bow that's less likely to enter the wave be safer? I guess this depends on the drag of the submerged shape and is a question for a naval architect!

@Jesusisking2785 5 лет назад

I can say being on traditional ships it feels more like a ram in rough seas like smashing into it rather than slicing through it

@geronimo4511 3 года назад

I wonder what happens all these various bow types when waves come from directions other than straight ahead?

@superfluous9726 4 года назад

I love how he says "wall of solid water"

@daxtonbrown 4 года назад

You should do one on the ocean racing scows.

@jamesellsworth9673 4 года назад

Would-be owners need to know this information in considering their priorities. Thank you.

@Thebluernemace 4 года назад

i dont know what any of this means but whatever they used on ocean liners looks coolest

@rocketsurgeon4876 5 лет назад

Came across what seems like a wave piercing trimaran cruiser a while back called the Alibi 116. Have you seen that? What do you think about it? Looks interesting!

@DatawaveMarineSolutions 5 лет назад

Definitely interesting. I'm curious about the structural and hydrodynamic design. With trimarans, the big game to reduce your resistance is finding the right balance for wave resistance and viscous resistance (hull friction + some other stuff). They have very thin hulls. Good points there. But the side amas are all full length, and they have a lot of appendages in the water. Lots of surface area for skin friction. Not sure if that was the best approach. I'm also curious about their forward daggerboards on the amas. Those boards are curved, which means they partially act as a hydrofoil as well. That might help reduce their resistance. I can't say if it is a good or bad design. That requires far more intimate knowledge than I can get from a five minute review. But it certainly has some interesting ideas.

@paullang9711 5 лет назад

Loved the video. I never considered 1/4 wave behavior or wind-loading. Makes a ton of sense! Thanks for the explanations. Afterthought #1: Is SWATH the last remaining hope for overall stability in the widest variety of conditions?

@DatawaveMarineSolutions 5 лет назад

For ultimate smooth motions, yes a SWATH is probably your best bet. But that also has its own array of challenges. You can learn about them in this video on SWATH boats: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jJAHyDl6KS8.html

@danielmartin7838 2 года назад

I was driving down a rural road at 50 one morning and hit some water on the road. It reduced the speed of my Land Rover down to 30mph. Quite fun

@shauno8878 4 года назад

Great series! Can you do a video on electric propelled cruising catamaran hull design for getting the best range on electric engines and batteries? Thx

@DatawaveMarineSolutions 3 года назад

I have that one in the works now. It should get released sometime next year. (I plan the videos out several months in advance)

@chloehennessey6813 5 лет назад

My grandpa named one of their new X now ships after me. She services oil rigs in the North Sea. My father named our newest 300T bollard pull seagoing tug the nickname he has for me.